Clayville Reservoir Dam Reservoir Report

Last Updated: December 8, 2025

Clayville Reservoir Dam, located in Clayville, New York, is a local government-owned structure that serves as a critical water resource for the area.


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Summary

Built in 1917, this earth dam stands at a height of 26 feet and spans 411 feet in length, with a storage capacity of 2 acre-feet. The dam regulates Sauquoit Creek and is state-regulated by the New York State Department of Environmental Conservation.

With a spillway width of 81 feet and an uncontrolled spillway type, Clayville Reservoir Dam poses a significant hazard potential and has a moderate risk assessment rating. While the condition assessment is currently not rated, the dam undergoes inspections every four years to ensure its structural integrity and safety. The emergency action plan for the dam was last revised in 2013, and the risk management measures are yet to be specified.

Enthusiasts of water resources and climate will find Clayville Reservoir Dam to be a fascinating structure with a rich history dating back over a century. As a vital component of the local water infrastructure, the dam plays a crucial role in regulating water flow and ensuring the safety of the surrounding community. Its unique design and state-regulated status make it a compelling subject for further exploration and study in the realm of water resource management and climate resilience.

Year Completed

1917

Dam Length

411

Dam Height

26

River Or Stream

SAUQUOIT CREEK

Primary Dam Type

Earth

Surface Area

2

Drainage Area

18

Nid Storage

2

Hazard Potential

Significant

Nid Height

26
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.